Out of thin air

In discussing the struggles of Colorado Rockies pitchers through the years, the common refrain has been "You can't pitch at Coors Field." The 2001 season was the best -- or worst -- example: The Rockies' pitching staff reached its nadir by allowing a National League-record 239 home runs. But since that season, there has been a steady, yet subtle, change in the club's approach to pitching that has allowed it to compete despite the oppressive offensive conditions. And no, I'm not talking about the humidor (though that has helped).